<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

<svg width="100%" height="100%" version="1.1"
    xmlns="http://www.w3.org/2000/svg">

        <script type="text/javascript">
<!--
function getElements()
  {
    var integers = new Array( "g0", "g1", "g11", "g12", "g2");
    var count = 0
    var elsLen = integers.length;  
    for (i=0; i<elsLen; i++)
    {
     if (document.getElementById(integers[i]).style.visibility=="visible")
     count++;
     }
  alert(count);
  }
  -->
</script>

    <svg x="20" y="20">
        <g id="g0" style="visibility:visible" >
            <text x="25" y="20" font-family="Verdana" font-size="24" fill="gray" >dtbook</text>
        </g>
        
        <g id="g1"  style="visibility:hidden" >
            <text x="25" y="40" font-family="Verdana" font-size="24" fill="gray" >dtbook</text>
        </g>
        
        <g id="g11" style="visibility:hidden" >
            <text x="25" y="60" font-family="Verdana" font-size="24" fill="gray" >dtbook</text>
        </g>
        
        <g id="g12" style="visibility:hidden">
            <text x="25" y="80" font-family="Verdana" font-size="24" fill="gray" >dtbook</text>
        </g>
        
        <g id="g2" style="visibility:visible">
            <text x="25" y="100" font-family="Verdana" font-size="24" fill="gray" >dtbook</text>
        </g>
    </svg>

    <rect onclick="getElements()" x="20" y="180" width="25" height="25" rx="5" ry="5" style="fill:grey"/>    
</svg>

这里我即便在函数中将  alert(count);  改为alert(document.getElementById(integers[1]).style.visibility);  也不会弹出窗口显示hidden。

希望高手赐教